Flushing device for closets.



E. THIRY.

FLUSHING DEVICE FOR CLOSETS.

APPLICATION FILED MAR. 2. 1915.

Patented Nov; 9, 1915.

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ily displaced and fails to operate, where EDWARD rHIaY, or PASADENA,

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CALIFORNIA.

FLUSI-IING DEVICE FOR CLOSETS.

Specification of Letters Patent.

Patented Nov. 9, 1915.

To all'whom it may concern p U Be it known that I, EDWARD Ti-I'IR'Y, acitizen of the United States, residing at Pasadena,-in the county of LosAngeles and State of California, have invented new and usefulImprovements in Flushing Devices for Closets, of which the following isa specification.

This invention relates to improvements in flushing devices for toilettanks and particularly to flushing devices for lowdown tanks that areused in connection with closet bowls and the principal object of theinvention is to produce a flushingdevice which may be placed in alowerportion and be operated without the use ofrubber valves, seats ormercury seals.-

It is also an objectto provide a flushing mechanism with a inimumnumberofmovable parts.

It is also an object to provide a flushing mechanism in which air isusedas the seal or valve to prevent operation or flushing of theconnectedbowl. 1 A

It is a still further object to have the water in the tank balance theair entrapped to form the seal so that a minimum amount of effort isrequired to initiate the flushing operations with correspondingdiminution f the-noise incident thereto. I

It is a still further object to provide a flushing mechanism with meansto quickly start'the siphon into the discharge pipe, thus diminishingthe noise of operation. I

In the accompanying drawing, forming a part of this specification:Figure 1 is a vertical sectional view taken through a flush tankconstructed in accordance with the present invention and through acloset bowl connected therewith, the bowl being turned through an angleto more clearly show the flush tank and its connection to the bowl. Fig.2 is a similar section, the'bowl being also turned at an angle andshowing the unsealed position. Fig. 8 is a section of the bells andheadof the 'dischargepipe on a larger scale to more clearly show the contracting of the bells when the tank'is full of water ready for flushing.Fig. 4: is aplan view of the discharge pipe with the apron partly brokenaway.

' Heretofore in the operation,.especially of low down toilets, rubbervalves or seats have been used which soon harden'a-nd perunit leakage,and this type of valve is readmercury seals are used to overcome thesedefects, the expense of maintainance is materially increased. Myinvention overcomes these defects, uses air as a seal, and accomplishesthe result with members impossible to displace under ordinary conditionsand with no expense for maintenancetogether with a decrease in theobjectionable noise when in flushing operation. I

The details and features of the invention will now be more particularlydescribed, reference being had to the said drawing in which 5 indicatesa flushing tank adapted to be mounted upon a wall or otherwise suitablysupported a slight distance above the bowl 6 of a toilet closet. Theflush may be of any. ordinary construction and a flush or dischargepipe. 7 extends downwardly therefrom so as to act with the trap 8 preferably built in'the closet-bowl. The parts are usually arranged so thatthe pipe 7 is in 7 vertical position and extends into the long leg 'Ofthe water trap 8. The upper end ofthe pipe7 projects upward about halfway into the tank 5, and its upper end is formed with a flaring portion9 having projections 10 upon its upper edge at three or more points. V

- To aid in the discharge of the water and prevent noise the flaringportion 9 is also provided with a downwardly inclined apron 11, thewaterleaving the lower edge 12 of this apron, is distributed over thecross section of the discharge pipe 7, forming a plug of water which infalling :creates a vacuum and starts the siphon. In the ordinaryconstruction of discharge pipes, the water initially runs down theinside of the pipe 7 leaving an air filled center and making much noise.A bell l-lrests at all times upon the upper ends of' said projections 10as clearly shown in the drawings, and the said bell 1a is made ofconsiderable depth or about equal to the height of the discharge pipes,and its lower edge projects downcentral opening to receive said tubewhile the lower end of the tube extends down Cooperating with the bell14 1s tral portionwill rest upon. the lower bell 14: and close the upperopen end of the tube 16 and leavin an annular air s ace 18' between thebells.

The bell 14 is provided with an eye 19 having an extension 21 looselyvfitting into the tube'16 and serving as a guide, but having sufficientclearance so that air may pass out of the pipe 16'when the bell 17 israised. Bell 17 is provided with an eye 19 by which it is connected tothe link. forming a member of a link mechanism leading to a convenientoperating lever or button; 7

The tank 5 maybe provided with any suitablevalve28 for controlling thesupply of water to the tank, the said valve being automaticallyoperatedby a float 29 and a float lever 30; the valve 28 being connected withthe service pipe 31 in the 'usual way. An

" after fill 32 may also be provided extending from the valve28 andbeingbent so as to enter the lower bell l l and pass upwardly therein, itsvinner end being turned downwardly within the pipe 7 fora short dis- 1tancev This pipe will supplyadded water will, after a flushingoperation, gradually which may be needed to insure the maintaining ofthe water in the bowl at a proper height, in the usual and well knownmanner.

In the operation of the device the water rise in the tank 5 until aproper height has been attained in the tank to shut the valve 28. Thebells being contracted, the water will also rise in the lower portionsof the bells until the air'entrapped within thepipe 7 and between thebells '14:, and the water in the trap 8 is slightly compressed, andbalances the water in the tank 5, the parts are so proportioned that thewater will not risev farenough inthe lower bells to overflow into thetube 7.

WVhen it is desired to flush the closet the lever is operated to liftthe bell 17 this will release the pressureby allowing the air in thepipe 7 to escapeup through the water in the tank by way ofthe tube 16and upsets the balance between the saidair and the water in the tank 5and the :water will rise in the bell 14 and'enter the flush pipe overtheupper edge thereof, the apron 11 distrlbuting the waterto completelyfill the pipe and carry the water out with a minimum amount of noise; aslight pressure of about one quarter of a pound above the ordinaryatmospheric pressure being main tained in the air seal. Thesiphonizing-action W111 be continued until the; water. has

an upper hell 1? which is of such shape thatits cenpipe secured therein.a 7 c 3. flushing mechanismf comprising {in .COIIlblIliltlOIl wlth aflush tank and a bowl,

moves turning the lever-30 and opening valve 28 to admit water from theservice pipe. As the water gradually fills the fiushing tank again, thewater and air will assumethe same relative positions as before theflushing operation. The weight of the bell guided by the rod 30extending into the pipe 16immediatelyreturns .it to the normalpositionclosing thepipe 16 as the siphoning is established. V l,

While the tank is filling water flows through the refill pipe 32supplying an 7 amount equal to that lost by the inertia of the waterflowing out of the bowl during the V flushing operation,

When the water leaves as normal high level thefloat 29 attains aposition such that,

it closes valve 23 when the tank is ready for another flushingoperation. 7

What I claim is:

1. A flushing mechanism-, comprising in I combination with a flush tankand av bowl having awater trap therein, of a discharge tube extendingfrom a point midway insaid tank through the bottom thereof into the longleg of said water trap a bell having an,

opening in the dome thereof, a pipe secured v in the opening of saidbell andv extending downwardly within said flush pipe, means to supportsaid-bell in concentric relation and with its dome'a slight distanceabove the open end of said discharge pipe, and a domed closure normallyresting on the dome of said bell to close said opening and the open endof said pipe secured therein.

. 2. YA flushing mechanism, comprising in combination with a flush tankand bowl having a water trap therein, of adischarge tube extending froma-point midway in said tank through the bottom thereof into the longlegof' said water trap, a bell having anopening in the dome thereof, apipe securedin the opening'of said dome and extending downwardly withinsaid flush pipe means to support said bell concentric relation and withits dome a slight distance above the open end of said discharge pipe,and a domed closure having a guide rod projecting into said pipe, saiddomed closure-being adapted to normally rest on saiddomeof said bellto 7close said opening and-the open end of said a water trap in said bowl, abell having an support said bell in concentric relation and with itsdomea slight distance'above the open end of said dischargepipe, and

iso

domed closure adapted to normally rest on said apex of said bell toclose said opening and the open end of said pipe secured therein.

4. A flushing mechanism, comprising in combination with a flush tank anda boWl having a Water trap therein, of a discharge tube having the openend in said tank flare, the other end leading to the said trap, a bellsecured to the flaring end of said discharge tube, an air relief pipeextending into said discharge pipe secured at one end in an openingthrough the discharge of the dome, and a dome closure loosely mounted onthe dome of said bell to close the open end of said air relief pipe.

5. A flushing mechanism comprising in combination With a flush tank anda bowl having a Water trap therein, of a discharge Copies of this patentmay be obtained for tube having the open end in said tank flare, theother end leading to the said trap and with aflared apron securedtherein, a bell secured to the fiared end of said discharge EDWARDTHIRY.

Witnesses ERNEST L. WALLACE, MARGUERITE BATES.

five cents each, by addressing the Commissioner of LPatents,

Washington, D. C.

